How Many Students Got an A?Math brain teasers require computations to solve.
The teacher has finished grading the math papers at West High School. The class size is under 30. One third of the class got a `B`, one fourth got a `B-` and one sixth got a `C`. One eighth of the class flunked and the remainder of the class received an `A`.
How many students in the class received an `A`?
AnswerFind a common denominator for 3, 4, 6 and 8. The only common denominator smaller than 30 is 24. Therefore, the class size was 24 and the grades were:
The number of students who received A`s was 3 (24 - 21)
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